Wiliam entered U.S. records in 1881, near the turn of the 20th century. Its popularity climbed over the following decades. In 1982, 28 babies received the name (ranked #1999). Today it sits well outside the top 1,000 (around #8618), with roughly 10 babies named Wiliam each year. Wiliam's usage has held roughly steady recently. In total, around 1,243 babies have been registered with this name since 1880.